Italy's high-rise forests take root around the world

As balconies bristle with tree branches and sunshine dapples the leaves of thousands of plants, two apartment buildings in the heart of Milan have almost disappeared under lush forest.

Epic world solar car race begins in Australia

An epic 3,000-kilometre (1,860-mile) solar car race across the desert heart of Australia designed to showcase new technology that could one day help develop commercial vehicles got underway Sunday.